Since Allison’s death, new safety laws have been put in place for duck boats. Legislation approved last December, forced duck boat operators to separate the responsibilities of driver and tour guide. It also required blind spot cameras and proximity sensors on all the vehicles.

Boston Duck Tours did not run tours on Sunday out of respect for the Warmuth family.

“It’s huge not seeing them,” said Warmuth. “If you have someone kill your daughter and you’re seeing them, every day, many many times it breaks your heart.”